Patents by Inventor Ananth Rao
Ananth Rao has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 12282678Abstract: One or more techniques and/or computing devices are provided for synchronous replication. For example, synchronous replication relationships are established between a first storage object (e.g., a file, a logical unit number (LUN), a consistency group, etc.), hosted by a first storage controller, and a plurality of replication storage objects hosted by other storage controllers. In this way, a write operation to the first storage object is implemented in parallel upon the first storage object and the replication storage objects in a synchronous manner, such as using a zero-copy operation to reduce overhead otherwise introduced by performing copy operations. Reconciliation is performed in response to a failure so that the first storage object and the replication storage objects comprise consistent data. Failed write operations and replication write operations are retried, while enforcing a single write semantic.Type: GrantFiled: August 11, 2023Date of Patent: April 22, 2025Assignee: NetApp, Inc.Inventors: Michael Robin Eisler, Santosh Ananth Rao, Akhil Kaushik, Yuedong Mu
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Publication number: 20240126470Abstract: One or more techniques and/or computing devices are provided for synchronous replication. For example, synchronous replication relationships are established between a first storage object (e.g., a file, a logical unit number (LUN), a consistency group, etc.), hosted by a first storage controller, and a plurality of replication storage objects hosted by other storage controllers. In this way, a write operation to the first storage object is implemented in parallel upon the first storage object and the replication storage objects in a synchronous manner, such as using a zero-copy operation to reduce overhead otherwise introduced by performing copy operations. Reconciliation is performed in response to a failure so that the first storage object and the replication storage objects comprise consistent data. Failed write operations and replication write operations are retried, while enforcing a single write semantic.Type: ApplicationFiled: August 11, 2023Publication date: April 18, 2024Inventors: Michael Robin Eisler, Santosh Ananth Rao, Akhil Kaushik, Yuedong Mu
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Publication number: 20240080362Abstract: A storage area network (SAN)-attached storage system architecture is disclosed. The storage system provides strongly consistent distributed storage communication protocol semantics, such as SCSI target semantics. The system includes a mechanism for presenting a single distributed logical unit, comprising one or more logical sub-units, as a single logical unit of storage to a host system by associating each of the logical sub-units that make up the single distributed logical unit with a single host visible identifier that corresponds to the single distributed logical unit. The system further includes mechanisms to maintain consistent context information for each of the logical sub-units such that the logical sub-units are not visible to a host system as separate entities from the single distributed logical unit.Type: ApplicationFiled: November 13, 2023Publication date: March 7, 2024Inventors: Santosh Ananth Rao, Geoffrey Stewart Brown, Srikumar Natarajan, Pranab Patnaik, Kai Tan, Peter Frank Corbett, Vivek Venkatesan
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Patent number: 11818212Abstract: A storage area network (SAN)-attached storage system architecture is disclosed. The storage system provides strongly consistent distributed storage communication protocol semantics, such as SCSI target semantics. The system includes a mechanism for presenting a single distributed logical unit, comprising one or more logical sub-units, as a single logical unit of storage to a host system by associating each of the logical sub-units that make up the single distributed logical unit with a single host visible identifier that corresponds to the single distributed logical unit. The system further includes mechanisms to maintain consistent context information for each of the logical sub-units such that the logical sub-units are not visible to a host system as separate entities from the single distributed logical unit.Type: GrantFiled: October 29, 2020Date of Patent: November 14, 2023Assignee: NetApp, Inc.Inventors: Santosh Ananth Rao, Geoffrey Stewart Brown, Srikumar Natarajan, Pranab Patnaik, Kai Tan, Peter Frank Corbett, Vivek Venkatesan
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Patent number: 11726697Abstract: One or more techniques and/or computing devices are provided for synchronous replication. For example, synchronous replication relationships are established between a first storage object (e.g., a file, a logical unit number (LUN), a consistency group, etc.), hosted by a first storage controller, and a plurality of replication storage objects hosted by other storage controllers. In this way, a write operation to the first storage object is implemented in parallel upon the first storage object and the replication storage objects in a synchronous manner, such as using a zero-copy operation to reduce overhead otherwise introduced by performing copy operations. Reconciliation is performed in response to a failure so that the first storage object and the replication storage objects comprise consistent data. Failed write operations and replication write operations are retried, while enforcing a single write semantic.Type: GrantFiled: February 28, 2022Date of Patent: August 15, 2023Assignee: NetApp, Inc.Inventors: Michael Robin Eisler, Santosh Ananth Rao, Akhil Kaushik, Yuedong Mu
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Publication number: 20220187993Abstract: One or more techniques and/or computing devices are provided for synchronous replication. For example, synchronous replication relationships are established between a first storage object (e.g., a file, a logical unit number (LUN), a consistency group, etc.), hosted by a first storage controller, and a plurality of replication storage objects hosted by other storage controllers. In this way, a write operation to the first storage object is implemented in parallel upon the first storage object and the replication storage objects in a synchronous manner, such as using a zero-copy operation to reduce overhead otherwise introduced by performing copy operations. Reconciliation is performed in response to a failure so that the first storage object and the replication storage objects comprise consistent data. Failed write operations and replication write operations are retried, while enforcing a single write semantic.Type: ApplicationFiled: February 28, 2022Publication date: June 16, 2022Inventors: Michael Robin Eisler, Santosh Ananth Rao, Akhil Kaushik, Yuedong Mu
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Patent number: 11262931Abstract: One or more techniques and/or computing devices are provided for synchronous replication. For example, synchronous replication relationships are established between a first storage object (e.g., a file, a logical unit number (LUN), a consistency group, etc.), hosted by a first storage controller, and a plurality of replication storage objects hosted by other storage controllers. In this way, a write operation to the first storage object is implemented in parallel upon the first storage object and the replication storage objects in a synchronous manner, such as using a zero-copy operation to reduce overhead otherwise introduced by performing copy operations. Reconciliation is performed in response to a failure so that the first storage object and the replication storage objects comprise consistent data. Failed write operations and replication write operations are retried, while enforcing a single write semantic.Type: GrantFiled: November 14, 2019Date of Patent: March 1, 2022Assignee: NetApp, Inc.Inventors: Michael Robin Eisler, Santosh Ananth Rao, Akhil Kaushik, Yuedong Mu
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Publication number: 20210044656Abstract: A storage area network (SAN)-attached storage system architecture is disclosed. The storage system provides strongly consistent distributed storage communication protocol semantics, such as SCSI target semantics. The system includes a mechanism for presenting a single distributed logical unit, comprising one or more logical sub-units, as a single logical unit of storage to a host system by associating each of the logical sub-units that make up the single distributed logical unit with a single host visible identifier that corresponds to the single distributed logical unit. The system further includes mechanisms to maintain consistent context information for each of the logical sub-units such that the logical sub-units are not visible to a host system as separate entities from the single distributed logical unit.Type: ApplicationFiled: October 29, 2020Publication date: February 11, 2021Inventors: Santosh Ananth Rao, Geoffrey Stewart Brown, Srikumar Natarajan, Pranab Patnaik, Kai Tan, Peter Frank Corbett, Vivek Venkatesan
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Patent number: 10901958Abstract: Methods and systems for a distributed database cluster storing a plurality of replicas of a databases are provided. One method includes locating by a processor, a timestamp of a last stored record in a backup copy of the database from a plurality of logical partitions for a point in time restore operation; identifying by the processor, an operation log for each logical partition with the last stored record, the operation log providing transaction details associated with the database; splitting by the processor, the operation log for each logical partition by ignoring transactions that occurred prior to the timestamp of the last stored record; and using by the processor, the split operation log for restoring the database to the point in time.Type: GrantFiled: April 27, 2018Date of Patent: January 26, 2021Assignee: NETAPP, INC.Inventors: Amarnath Rachapudi, Atish Kathpal, Vineeth Karinta, Karthikeyan Nagalingam, Santosh Ananth Rao
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Patent number: 10862966Abstract: A storage area network (SAN)-attached storage system architecture is disclosed. The storage system provides strongly consistent distributed storage communication protocol semantics, such as SCSI target semantics. The system includes a mechanism for presenting a single distributed logical unit, comprising one or more logical sub-units, as a single logical unit of storage to a host system by associating each of the logical sub-units that make up the single distributed logical unit with a single host visible identifier that corresponds to the single distributed logical unit. The system further includes mechanisms to maintain consistent context information for each of the logical sub-units such that the logical sub-units are not visible to a host system as separate entities from the single distributed logical unit.Type: GrantFiled: November 13, 2018Date of Patent: December 8, 2020Assignee: NetApp Inc.Inventors: Santosh Ananth Rao, Geoffrey Stewart Brown, Srikumar Natarajan, Pranab Patnaik, Kai Tan, Peter Frank Corbett, Vivek Venkatesan
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Publication number: 20200081625Abstract: One or more techniques and/or computing devices are provided for synchronous replication. For example, synchronous replication relationships are established between a first storage object (e.g., a file, a logical unit number (LUN), a consistency group, etc.), hosted by a first storage controller, and a plurality of replication storage objects hosted by other storage controllers. In this way, a write operation to the first storage object is implemented in parallel upon the first storage object and the replication storage objects in a synchronous manner, such as using a zero-copy operation to reduce overhead otherwise introduced by performing copy operations. Reconciliation is performed in response to a failure so that the first storage object and the replication storage objects comprise consistent data. Failed write operations and replication write operations are retried, while enforcing a single write semantic.Type: ApplicationFiled: November 14, 2019Publication date: March 12, 2020Inventors: Michael Robin Eisler, Santosh Ananth Rao, Akhil Kaushik, Yuedong Mu
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Patent number: 10496320Abstract: One or more techniques and/or computing devices are provided for synchronous replication. For example, synchronous replication relationships are established between a first storage object (e.g., a file, a logical unit number (LUN), a consistency group, etc.), hosted by a first storage controller, and a plurality of replication storage objects hosted by other storage controllers. In this way, a write operation to the first storage object is implemented in parallel upon the first storage object and the replication storage objects in a synchronous manner, such as using a zero-copy operation to reduce overhead otherwise introduced by performing copy operations. Reconciliation is performed in response to a failure so that the first storage object and the replication storage objects comprise consistent data. Failed write operations and replication write operations are retried, while enforcing a single write semantic.Type: GrantFiled: December 28, 2015Date of Patent: December 3, 2019Assignee: NetApp Inc.Inventors: Michael Robin Eisler, Santosh Ananth Rao, Akhil Kaushik, Yuedong Mu
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Patent number: 10484754Abstract: An advertisement status indicator method, system, and computer readable media implemented through a set-top box (STB) for determining Ad status during a program provides a user advance notice of the status of Ad playback. A request is received through the set top box to determine Ad status of one or more programs being broadcasted. The request may be access to an EPG grid displaying broadcasting information or a request to change channels. Ad status is determined for one or more programs being broadcasted. The Ad status is displayed to the user. Ad status may be based on Ad timing information and Time Offset/Date Table (TOT/TDT) values compared to Ad timing information generated with an Event Information Table (EIT). If the TOT/TDT value falls in a range of the Ad timing information, the Ad status of Ad playing is indicated to the user.Type: GrantFiled: July 24, 2017Date of Patent: November 19, 2019Assignee: ARRIS Enterprises LLCInventor: Ananth Rao
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Publication number: 20190332692Abstract: Methods and systems for a distributed database cluster storing a plurality of replicas of a databases are provided. One method includes locating by a processor, a timestamp of a last stored record in a backup copy of the database from a plurality of logical partitions for a point in time restore operation; identifying by the processor, an operation log for each logical partition with the last stored record, the operation log providing transaction details associated with the database; splitting by the processor, the operation log for each logical partition by ignoring transactions that occurred prior to the timestamp of the last stored record; and using by the processor, the split operation log for restoring the database to the point in time.Type: ApplicationFiled: April 27, 2018Publication date: October 31, 2019Applicant: NETAPP, INC.Inventors: Amarnath Rachapudi, Atish Kathpal, Vineeth Karinta, Karthikeyan Nagalingam, Santosh Ananth Rao
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Publication number: 20190082013Abstract: A storage area network (SAN)-attached storage system architecture is disclosed. The storage system provides strongly consistent distributed storage communication protocol semantics, such as SCSI target semantics. The system includes a mechanism for presenting a single distributed logical unit, comprising one or more logical sub-units, as a single logical unit of storage to a host system by associating each of the logical sub-units that make up the single distributed logical unit with a single host visible identifier that corresponds to the single distributed logical unit. The system further includes mechanisms to maintain consistent context information for each of the logical sub-units such that the logical sub-units are not visible to a host system as separate entities from the single distributed logical unit.Type: ApplicationFiled: November 13, 2018Publication date: March 14, 2019Inventors: Santosh Ananth Rao, Geoffrey Stewart Brown, Srikumar Natarajan, Pranab Patnaik, Kai Tan, Peter Frank Corbett, Vivek Venkatesan
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Publication number: 20190028777Abstract: An advertisement status indicator method, system, and computer readable media implemented through a set-top box (STB) for determining Ad status during a program provides a user advance notice of the status of Ad playback. A request is received through the set top box to determine Ad status of one or more programs being broadcasted. The request may be access to an EPG grid displaying broadcasting information or a request to change channels. Ad status is determined for one or more programs being broadcasted. The Ad status is displayed to the user. Ad status may be based on Ad timing information and Time Offset/Date Table (TOT/TDT) values compared to Ad timing information generated with an Event Information Table (EIT). If the TOT/TDT value falls in a range of the Ad timing information, the Ad status of Ad playing is indicated to the user.Type: ApplicationFiled: July 24, 2017Publication date: January 24, 2019Inventor: Ananth Rao
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Publication number: 20170185306Abstract: One or more techniques and/or computing devices are provided for synchronous replication. For example, synchronous replication relationships are established between a first storage object (e.g., a file, a logical unit number (LUN), a consistency group, etc.), hosted by a first storage controller, and a plurality of replication storage objects hosted by other storage controllers. In this way, a write operation to the first storage object is implemented in parallel upon the first storage object and the replication storage objects in a synchronous manner, such as using a zero-copy operation to reduce overhead otherwise introduced by performing copy operations. Reconciliation is performed in response to a failure so that the first storage object and the replication storage objects comprise consistent data. Failed write operations and replication write operations are retried, while enforcing a single write semantic.Type: ApplicationFiled: December 28, 2015Publication date: June 29, 2017Inventors: Michael Robin Eisler, Santosh Ananth Rao, Akhil Kaushik, Yuedong Mu
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Publication number: 20160119427Abstract: A storage area network (SAN)-attached storage system architecture is disclosed. The storage system provides strongly consistent distributed storage communication protocol semantics, such as SCSI target semantics. The system includes a mechanism for presenting a single distributed logical unit, comprising one or more logical sub-units, as a single logical unit of storage to a host system by associating each of the logical sub-units that make up the single distributed logical unit with a single host visible identifier that corresponds to the single distributed logical unit. The system further includes mechanisms to maintain consistent context information for each of the logical sub-units such that the logical sub-units are not visible to a host system as separate entities from the single distributed logical unit.Type: ApplicationFiled: October 20, 2015Publication date: April 28, 2016Applicant: NETAPP, INC.Inventors: Santosh Ananth Rao, Geoffrey Stewart Brown, Srikumar Natarajan, Pranab Patnaik, Kai Tan, Peter Frank Corbett, Vivek Venkatesan
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Patent number: 9313512Abstract: A method performed by one or more processors for segmenting and encoding media content over a network. The media content is first partitioned into an ordered sequence of media segments. Each of the media segments is then encoded (i) at a first bit rate to generate a respective one of a first set of data segments, and (ii) at a second bit rate to generate a respective one of a second set of data segments, wherein data segments of the first set may be used interchangeably with data segments of the second set to facilitate continuous playback of the media content. A request for the media content is then received from another device in the network. In response, a respective one of the first set of data segments or the second set of data segments is selectively transmitted, for each of the media segments, based at least in part on a network bandwidth of the first device.Type: GrantFiled: November 22, 2010Date of Patent: April 12, 2016Assignee: Vudu, Inc.Inventors: Prasanna Ganesan, Sumankar Shankar, Ananth Rao
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Patent number: 8209443Abstract: A system and method for identifying lost/stale peripheral hardware devices connected to an enterprise computer system is disclosed. In one embodiment, a method for identifying lost peripheral hardware devices connected to an enterprise computer system includes initializing system memory by obtaining data structures associated with last detected connected peripheral hardware devices stored in an external database upon reboot, initiating an enterprise computer system wide scanning to obtain the detected data structures associated with current connected peripheral hardware devices during the reboot, and comparing the obtained data structures associated with the last detected connected peripheral hardware devices and the current connected peripheral hardware devices to determine whether there is any chance in system resources associated with the connected peripheral hardware devices during the reboot.Type: GrantFiled: September 18, 2008Date of Patent: June 26, 2012Assignee: Hewlett-Packard Development Company, L.P.Inventors: Jeevan Basavaraju, Harish Kuttan, Santosh Ananth Rao